Record card structure



Jail-1.12; 1965 'r. As'KREN 3,165,431

' RECORD CARD STRUCTURE Filed Sept. 25'. 1960 Fig. 2 27 g H v/ E! I 4 I I PRESSURE ,0 l0 I2 25 G 3 l l 1 /7 zlfl 23 ADHESIVE 20 \J 1 I 22 FILM FOIL [6 r. \X \XQ ADHESIVE/8 A. 0. may 4 m i PRESSURE CARD ,9 l l l PM /2 29 25 32 PRESSURE 7 Fou.27 ADHESIVE 24 {l F 5 HEAT a CARD PRESSURE PRESSURE A.C.FIELD) 36 34 v 32 ADHESIVE24 ml.

z: 3. 4 38 LEE 1 ASKRE/V 37 INVENTOR.

BY yaw/M PRESSURE i ATT-ORNEY a AGE/V7 This invention relates to an apertured record card having a film secured thereto and more particularly, but

United States Patent not byway of limitation, to a foil frame having an adhesive surface for securing said frame to the card and a piece of film to said frame.

A mount or record card is-provided with an aperture and a thin frame of foil is secured to the card in relation to the aperture, the exposed surface of the foil frame being coated with an adhesive material which is activated by heat to secure a piece of film to the foil frame.

According to my invention a piece of film is positioned as desired with respect to the card aperture and in contact at its edges with the exposed adhesive-coated surface of the foil frame. The film is then pressed firmly against the adhesive-coated surface. Heat is then applied to the foil frame whereby its adhesive coating is activated to bind the film to the foil frame at the contacting surfaces.

- The foil frame can be heated inductively in an alternatto activate an adhesive coating on the exposed face of the frame in contact with the transparency.

Another object of the invention is to provide a method for bonding a piece of film to a foil frame secured to a card by inductively heating the frame in an electromagnetic field to activate a heat-sensitive adhesive coating on the frame and in contact with the film.

Further objects and advantages will be apparent to those skilled in the ant when the following detailed description is read with reference to the appended drawing.

Reference is now made to the accompanying drawing wherein like reference numerals designate like parts and wherein:

FIG. 1 is a plan view of a record card showing the arrangement of the aperture, film transparency, and adhesive coated foil frame as used according to one embodiment of my invention;

FIG. 2 is a plan view of a record card showing a similar arrangement as used according to another embodiment of my invention;

FIG. 3 is a vertical section through the arrangement shown in FIG. 1 and taken along the line 33 thereof, together with a diagrammatic showing of apparatus for securing the transparency to the foil frame according to one embodiment of my invention;

FIG. 4 is a vertical section through the arrangement shown in FIG. 2 and taken along the line 44 thereof, together with a diagrammatic showing of apparatusfor securing the transparency to the foil frame and within the card aperture; and I FIG. 5 is a vertical section through the card and is the same as that shown in FIG. 4 together with a diagrammatic showing of another form of apparatus for securing the transparency to the foil frame and within the card aperture.

Referring now to FIG. 1, a card 10 is provided with an aperture 12 defined by aperture edges 14. A frame 16 of a metallic or other suitable foil is placed with one face down against the card it) to form a margin around edges 14 of aperture 12. Frame 16 may be formed as a single piece, that is, blanked from a sheet with a central opening 17 of the same size and shape as aperture 12 why usingfour individual strips arranged adjacent each edge 14 to effectively provide an equivalent frame. As best shown in FIG. 3, the foil frame 16 is coated on both of its faces with an adhesive. On the surface of the strip which is placed against the card a coating 18 of adhesive is applied thereto and is of a type suitable for bonding the foil frame to the card. For carrying out my invention the card it can be supplied with the foil frame 16 already bonded to the card. The adhesive coating 20 on the exposed face of the foil frame 16 is a heatactivated adhesive suitable for bonding a film transparency to the foil frame. This coating is dry and nontacky until heated. The coatings 13 and 2% maybe of the same or different adhesive materials; for example, coating 18 can be a pressure-sensitive adhesive or a heatsensitive adhesive of the same type as coating Ztl.

According to my invention a piece of film 22 is placed with one face down across the aperture 12 and with margins extending around the aperture and over the exposed adhesive coating 20 of the foil frame 16. The film 22 can be moved over the dry non-tacky coating 20 for registering the fiim with the aperture .12. When the film is positioned as desired with respect to aperture 12, the margin of the film 22 is pressed firmly against the adhesive coated foil frame 16 by suitable means, as indicated by the numerals 19 and 21, in FIG. 3. While the film is so pressed, an alternating current electromagnetic field is induced by suitable means 23 across the foil frame 16 for inductively heating said frame. When the frame 16 is so heated, the coating is activated and bonds the film to the foil frame. The adhesive coating 13 is not disturbed and retains the bond between the card 10 and the frame 16. After the coating 20 has had time to bond the film to the frame, the electromagnetic field is removed, the pressure means is removed, and the film transparency 22 then remains bonded to the frame 16 and card 10 at the margins of the aperture 12.

In another embodiment of my invention a similar card 10 with aperture 12 and aperture edges 14 is provided. The aperture 12 is large enough to contain the piece of film 25 and foil frame 27 is bonded to the card at margins around the aperture and extends beyond the aperture edges 14 part way into the aperture 12 forming a foil margin inside the aperture edges. The entire face of the frame 27 facing the card is coated with a heat-activated adhesive 24. The other face of the foil need not be coated. For carrying out this embodiment of my invention the card it? can also be provided with the foil frame 27 already bonded to the card 10.

According to this embodiment of the invention, the

film 25 is placed in the aperture with its edge margins against the portion of the coated surface of the foil frame 2'7 extending into aperture 12. After the film is prop erly registered, it is then pressed firmly by suitable means against frame 27, as indicated by numbers 2?, 31 and 33;. A11 electromagnetic field is induced by suitable means 32 across the film 25 for inductively heating the foil frame 27, as shown in FIG. 4. When the foil is heated, the adhesive coating 24- bccomes activated and the film is bonded to frame 27. In this embodiment the coating 24 is preferably all of one material, though the portion secured to card 10 can be coated with a pressure-sensitive adhesive and the portion contacting the film can be a heatsensitive adhesive as described.

FIGURE 5 illustrates still another embodiment of my Fatented Jan. 12, 1965 invention. The card 1 0, film 25 and provided and positioned the same as explained above for foil frame 27 are FIG. 2 and FIG. 4. The method for securing film-25 to frame 27 is also thesame except that heat is applied directly to the foil frame (conductively) by suitable means, as indicated by 34 in FIG. 5, rather than by induction as above, when card 10, frame 27 and film 25 are held by pressure means 36, 37 and 38.

factured by the National Starch Company or No. 1014 Adhesive manufactured by the Halowax Company.

' Since-other modifications of the invention will be ap- 'parent to those skilledtin' the art, the invention is not to be limited to the embodimentsof the invention described herein but is of a scope as defined by the appended claims. Having now particularly described my invention, what I desire to secure by Letters Patent of the United States and what I claim is:

1. A method for securing a piece of film to a metal foil frame arrangedabout and bonded in registely with an aperture in a record card, the exposed surface of said metal foil frame being coated With a;heat-sensitive ad-' hesive, which comprises positioning said film on the exposed surface of said metalfoil frame and in registery with said aperture, pressing the marginal portions, of said film against said foil frame, and inductively heating said metal foil frame to activate said adhesive whereby said film is bonded to said frame. i

2. A method for securing a piece offilm toza metal foil frame arranged about and bonded in registery with an aperture in a record card, the exposed'surface of said metal foil frame being coated with a heat-sensitive adhesive on the side facing and extending into-saidaperture, which comprises positioning said film Within said aperture and in contact with said adhesive surface, applying pressure to the marginal portions of said aperture and said film, and heating said metal foil frame inductively to activate said adhesive whereby said film is bonded to said fname. V

References Cited in the file of this patent UNITED STATES. PATENTS 

1. A METHOD FOR SECURING A PIECE OF FILM TO A METAL FOIL FRAME ARRANGED ABOUT AND BONDED IN REGISTERY WITH AN APERTURE IN A RECORD CARD, THE EXPOSED SURFACE OF SAID METAL FOIL FRAME BEING COATED WITH A NEAT-SENSITIVE ADHESIVE, WHICH COMPRISES POSITIONING SAID FILM ON THE EXPOSED SURFACE OF SAID METAL FOIL FRAME AND IN REGISTERY WITH SAID APERTURE, PRESSING THE MARGINAL PORTIONS OF SAID FILM AGAINST SAID FOIL FRAME, AND INDUCTIVELY HEATING SAID METAL FOIL FRAME TO ACTIVATE SAID ADHESIVE WHEREBY SAID FILM IS BONDED TO SAID FRAME. 